LT1677 Low Noise, Rail-to-Rail Precision Op Amp FEATURES DESCRIPTIO Rail-to-Rail Input and Output The LT 1677 features the lowest noise performance avail- 100% Tested Low Voltage Noise: able for a rail-to-rail operational amplifier: 3.2nV/Hz 3.2nV/Hz Typ at 1kHz wideband noise, 1/f corner frequency of 13Hz and 90nV 4.5nV/Hz Max at 1kHz peak-to-peak 0.1Hz to 10Hz noise. Low noise is combined Offset Voltage: 60V Max with outstanding precision: 20V offset voltage and Low V Drift: 0.2V/C Typ 0.2V/C drift, 130dB common mode and power supply OS Low Input Bias Current: 20nA Max rejection and 7.2MHz gain bandwidth product. The com- Wide Supply Range: 3V to 18V mon mode range exceeds the power supply by 100mV. High A : 7V/V Min, R = 10k VOL L The voltage gain of the LT1677 is extremely high, 19 million High CMRR: 109dB Min (typical) driving a 10k load. High PSRR: 108dB Min In the design, processing and testing of the device, particular Gain Bandwidth Product: 7.2MHz attention has been paid to the optimization of the entire Slew Rate: 2.5V/s distribution of several key parameters. Consequently, the Operating Temperature Range: 40C to 85C specifications have been spectacularly improved compared U to competing rail-to-rail amplifiers. APPLICATIO S , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Low Noise Signal Processing All other trademarks are the property of their respective owners. Microvolt Accuracy Threshold Detection Strain Gauge Amplifiers Tape Head Preamplifiers Direct Coupled Audio Gain Stages Infrared Detectors Battery-Powered Microphones TYPICAL APPLICATIO Distribution of Offset Voltage 25 T = 25C A 3V Electret Microphone Amplifier V = 15V S 20 A = 100 R3 V 1.5V 1M 15 R1 C1 1.5V R2 10k 0.68F PANASONIC TO PA 10k 2 OR ELECTRET 7 HEADPHONES 10 CONDENSER 6 MICROPHONE LT1677 WM-61 3 + 23Hz www.panasonic.com/pic 4 5 HIGHPASS (714) 373-7334 1677 TA01 1.5V 0 40 30 20 10 0 10 20 30 40 INPUT OFFSET VOLTAGE (V) 1677 TA02 1677fa 1 PERCENT OF UNITS U ULT1677 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) TOP VIEW V V OS Supply Voltage ...................................................... 22V OS 1 8 TRIM TRIM 2 7 IN +V Input Voltages (Note 2) ............ 0.3V Beyond Either Rail S + +IN 3 6 OUT Differential Input Current (Note 2) ..................... 25mA V 4 5 NC S Output Short-Circuit Duration (Note 3) ............ Indefinite N8 PACKAGE S8 PACKAGE 8-LEAD PDIP 8-LEAD PLASTIC SO Storage Temperature Range ................. 65C to 150C T = 150C, = 150C/ W (N8) JMAX JA Lead Temperature (Soldering, 10 sec.)................. 300C T = 150C, = 190C/ W (S0-8) JMAX JA Operating Temperature Range ORDER PART NUMBER S8 PART MARKING LT1677C (Note 4) ............................. 40C to 85C LT1677CS8 1677 LT1677I ............................................. 40C to 85C LT1677IS8 1677I Specified Temperature Range LT1677CN8 LT1677C (Note 5) ............................. 40C to 85C LT1677IN8 LT1677I ............................................. 40C to 85C Order Options Tape and Reel: Add TR Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF Lead Free Part Marking: